Patch-Source: https://src.fedoraproject.org/rpms/hunspell-en/blob/867a4c3e890757878ec8a45c22701640a8b4817f/f/hunspell-en-allow-non-typographical.marks.patch
(inspired)
--
--- a/en_CA.aff
+++ b/en_CA.aff
@@ -14,7 +14,7 @@
 COMPOUNDRULE 2
 COMPOUNDRULE n*1t
 COMPOUNDRULE n*mp
-WORDCHARS 0123456789
+WORDCHARS 0123456789'
 
 PFX A Y 1
 PFX A   0     re         .
--- a/en_US.aff
+++ b/en_US.aff
@@ -14,7 +14,7 @@
 COMPOUNDRULE 2
 COMPOUNDRULE n*1t
 COMPOUNDRULE n*mp
-WORDCHARS 0123456789
+WORDCHARS 0123456789'
 
 PFX A Y 1
 PFX A   0     re         .
--- a/en_GB-large.aff
+++ b/en_GB-large.aff
@@ -14,7 +14,7 @@
 COMPOUNDRULE 2
 COMPOUNDRULE n*1t
 COMPOUNDRULE n*mp
-WORDCHARS 0123456789
+WORDCHARS 0123456789'
 
 PFX A Y 1
 PFX A   0     re         .